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Introduction to Linux - A Hands on Guide

This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.

After updating firefox from 3.0.x to 3.5.1, it wouldn't start and I would get this message: "Could not find compatible GRE between version 1.9.1 and 1.9.1". From past experience this told me that the firefox and xulrunner were out of sync. So I went ahead and removed both packages and re-installed using zypper.

Ok, so now firefox will start but all I get is a blank page/tab with the title "Untitled". That's it. No other messages. If I open another tab, I get the same thing. Below is a list of things I've tried to solve this problem, in no particular order:

If you are removing firefox using Yast or zypper make sure that all the
hidden files are removed too.
But if you do so all you're personal settings are gone too
Mostly I just download it from mozilla in home dir and run it from
there.

I did remove the hidden directory ".firefox", but that had no effect. I didn't think it should anyway. I might go ahead and file this a bug in opensuse. There's no reason why this problem should happen after an update.

As a workaround I have installed it in my home directory. That works fine.